为了解锁怎样降你的iphone 3G 2.30(2.2.1)基带

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Posted April 16, 2009 at 1:52pm by iClarified

这将介绍关于降基带的，这个将允许你用YellowSnOw去解锁你的BB.

警告：在继续之前，请您确认你的BB使用的是bootloader 5.8。你可以找到介绍信息在我们的以下网址：
Windows, Mac.
确保你是在2.30基带在以下的这个指南. 同样需要安装MobileTerminal 来完成这个指南。

步骤一
开始 Cydia

步骤二
在屏幕底下按选Sections 标签.

步骤三
在Sections菜单里面按选iClarifed 。如果你没有看到 iClarified ，那么你需要添加iClarified source ，使用这里介绍.

步骤四
按选DownBB在Packages菜单里.

步骤五
按选 Install 按钮在屏幕的右上角。

Ste步骤六
按选 Confirm 按钮开始安装

步骤七
当安装完成后，按选Return to Cydia 按钮.

步骤八
按 Home 按钮去返回到你的主页面，然后开始 Terminal

步骤九
输入 su 在terminal window，然后输入 alpine 当提示password.

步骤十
输入DownBB 在terminal window 来开始基带降低脚本

步骤十一
你将会要求确认如果你想要继续，请确认你是在2.30的基带并且是 5.8 bootloader在你输入 yes之前.

步骤十二
降低BB现在开始执行脚本

步骤十三
当脚本运行完成，将会自动重启你的BB

步骤十四
请注意你现在已经是2.28基带了

步骤十五
现在你可以解锁你的BB，请看解锁教程 here!

谢谢b]
非常感谢EvilPenguin|, pH, and DHowett 他们制作的脚本for their work on this script! 谢谢to Geo-hot 发现这个漏洞!

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ravdeep - August 26, 2012 at 10:57am

i have iphone 3g bootloader 6.2 .... by mistake i upgraded it to 4.2.1 baseband 5.15.04 .... now its sim is not getting unlocked..... Is there any way to do it......as the baseband cannot be downgraded using fuzzyband......??????????

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Damann - October 19, 2009 at 11:02am

I have an Iphone 3G with 3.0 and 5.9 bootloader and 05.11.07 baseband.... When are they gonna come out with a fix for this to be unlocked or an update or something... Ive been waiting a long time for this... Plz Help a brother out.... Im stuck like chuck

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sanenda - October 8, 2009 at 11:05pm

Hello, I have iphone 3g i installed firmware 3.1 by mistake after that i again installed firmware 3.0 after getting errors now i have baseband 05.11.04 something like that, and bootloader 5.90. now I want to unlock my iphone because ultrasn0w is no longer working now.... please help me out.

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that doesn't exactly embrace the avoidance of unnecessary intervention.

Maha - September 20, 2009 at 4:16am

The solution is to upgrade to 3.0 OS and then use Ultasnow to unlock..it works for 5.9 and 6.2 bootloader.

Shahzad Riaz - September 21, 2009 at 5:16pm

Still no luck ..i got OS 3.0 and bootloader 6.4... suggestions? cheers.

Naiyadh - October 1, 2009 at 7:59am

Hey, i have iphone 3g with fw 3.0. my bootloader is 5.09 and bb is 5.11.07. do you think i can do this to downgrade my bb. Please let me know. And thanks for help.

Maha - October 1, 2009 at 8:29am

Yes It is possible I have OS 3.0 and bb 6.02 *(It was 6.somthing I can't recall). Anyway I used Ultrasnow to unlock my phone. Visit this page and do as they say : http://www.blogsdna.com/3778/how-to-unlock-iphone-3g-30-os-firmware-with-ultrasn0w-06.htm

Salman - October 2, 2009 at 1:03pm

Ayman - May 29, 2010 at 10:13pm

ya maha could you tell me more how can you make it work with boot loader 08.09 i tried 3.1-3.12-.3.13 nothing is happening

hyper - July 3, 2009 at 2:32am

thanks for this one, but unlucky for me. Mine has a 5.9 bootloader. is their a new way to downgrade it?

kabin - August 20, 2010 at 7:33am

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muhd sidek - June 22, 2009 at 7:36am

I cant unlock my phone wit yellowsnow..........its show NO SERVICE>.........pLS any1 help me .......... IPHONE 3G 2.2 baseband 04.26.08..................PLSSSSSS

DRAGAN - June 20, 2009 at 10:06am

iphone 3g 3.0 modem 04.26.08 unlock the carrier

mmet - June 18, 2009 at 2:13pm

hello my friend i have iphone 3g 16 gb 3 but i cant use in turkey my phones version 5.9 i cant use with simcard just use turbo sim plz ı need ur help ...

waigal - June 17, 2009 at 12:20am

i have a 3g iphone with bootloader version 05.09 and baseband version 02.30.03 and OS version 2.2.1 can't downgrade the baseband anyone can help????

mike - June 19, 2009 at 11:34pm

iphone newbie is there a way to downgrade 5.9 bootloader yet please help

the_same - September 19, 2009 at 9:30pm

same happens to my iphone dude, i did all that shitty bt nothing happnd yet ,,,,

Maha - September 20, 2009 at 4:21am

Don't worry there is a solution, it has been out for almost 2 months. check http://www.blogsdna.com/3778/how-to-unlock-iphone-3g-30-os-firmware-with-ultrasn0w-06.htm

dr-sotz - October 2, 2009 at 12:43pm

only jailbroken not unlock if ur bootloader is 5.9 and 6.x

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chuck - June 14, 2009 at 11:48pm

iphone newbie is there a way to downgrade 5.9 bootloader yet please help!!!

Jaspreet Singh Jolly - April 23, 2010 at 10:35pm

u cannot downgrade 05.09 bootloader as it is hardware prob........ if u want to replace 05.09 n u live in new delhi(india) i can help u out for that.... it will cost u a bit high ....... ne 1 interested mail me at jaspreet.jolly.6267@gmail.com

Bryan - November 17, 2010 at 1:19am

Did anyone figure out how to downgrade Bootloader 05.09????

vysal - June 12, 2009 at 4:42am

i install actidently with os 3.0 bootloader 5.9 / modem firmware 04.26.08 ... i can jealbreak but cant unlock the GSM carrier. so any idea.

Nameless - December 23, 2009 at 9:11am

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smit dave N. - June 3, 2009 at 12:09pm

hey i have a boot loader version 5.9...plz help how to downgrade to 5.80...plzzz help plzzzz!!!!!!!!!!

akter_hosain - June 3, 2009 at 2:31am

I have a Iphone 3g, Firmware version 2.25G77, Modem version 2.30.03 Bootloader version 6.04

reex33 - May 28, 2009 at 10:14am

C'mon!!!! 5.9/6.0 to 5.8 I hope we get this problem solved soon. shhhiiiiitttt......

taha Hadrez - May 27, 2009 at 7:46am

sdfg

tony - May 27, 2009 at 1:35am

help me unlock 2.2.1 version, 2.30.03 baseband and 6.04 bootloader iphone.

serenity - May 26, 2009 at 1:23pm

Thank you for the help. However, yet, the problem could not be solved. Again, we request your help. At present, it is " modem version 02.30.03 ", "OS 5G77". Tell the way of changing into modem version 02.28.0. It tried a down grade in the envoy modem version in the Fuzzyband software. However, because the bootloader version was to do 5.9 being, it isn't possible to do a change. Tell the way of changing a bootloader version into 5.8. Or, tell the way of modem version's being able to be changed in the other way. I request your help.

MrBlue - May 25, 2009 at 10:46pm

Hi, Dev team, we know that you guys are working on upgrading Yellowsn0w to make it possible to unlock bootloader 5.09 - 6.0. Hopefully can be done... don't let Apple laugh at us... poor people who really don't want to be "jailed" and the people who decided to follow your path.

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